package com.hy.web;

import com.hy.common.Result;
import com.hy.service.AccountService;
import com.hy.utils.JsonUtils;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created With IntelliJ IDEA.
 * Descriptions:
 * author: Mr.Du
 * Date: 2022/9/2
 * Time: 11:28
 */
@WebServlet("/transferServlet")
public class TransferServlet extends HttpServlet {
    
    // 代理对象
    private AccountService accountService;
    
    
    @Override
    public void init() throws ServletException {
        WebApplicationContext webApplicationContext =
                WebApplicationContextUtils.getRequiredWebApplicationContext(this.getServletContext());
        accountService = (AccountService) webApplicationContext.getBean("accountService");
    }
    
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }
    
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        // 设置请求体的字符编码
        req.setCharacterEncoding("UTF-8");
    
        String fromCardNo = req.getParameter("fromCardNo");
        String toCardNo = req.getParameter("toCardNo");
        String moneyStr = req.getParameter("money");
        int money = Integer.parseInt(moneyStr);
    
        Result result = new Result();
    
        try {
            // 2. 调用service层方法
            accountService.transfer(fromCardNo,toCardNo,money);
            result.setStatus("200");
        } catch (Exception e) {
            e.printStackTrace();
            result.setStatus("201");
            result.setMessage(e.toString());
        }
    
        // 响应
        resp.setContentType("application/json;charset=utf-8");
        resp.getWriter().print(JsonUtils.object2Json(result));
    }
}
